Ian added to his chicken soup 4 cups of egg noodles containing 13.24 grams of fat. He calculated that each cup of egg noodles has 0.331 grams of fat. Explain how you can use estimation to determine if Ian’s answer is correct.

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations